baber/WOPTO huggingface dataset:
Patent GB-988724-A (GB)
Title: Electric motor control
IPC: H02P5/68
Filed: 1962-06-25
Abstract: 988,724. Control of several D.C. motors; locking switches. SUNBEAM CORPORATION. June 25, 1962 [Aug. 22, 1961], No. 24360/62. Headings H2B and H2J. A battery-driven vehicle has compoundwound traction motors 20, 21, which are connected in series with a shunt-wound auxiliary motor 23 serving as a substitute for a control resistance. Each of the motors drives a fan, a duct being provided for causing air movement produced by each fan to pass over all the motors. A pedal 47 is coupled to control rod 53 which is adapted simultaneously to close main switch 25 and to energize the shunt field windings of the motors, a field rheostat 44 being provided. Arcing at the contacts of switch 25 is suppressed by capacitor 60 associated with discharge resistor 61 through switch 62 which is closed when the switch 25 is opened. To limit the armature current for efficient operation, an electromagnet 24 moves lug 67a to permit downward movement of roller 71. If in moving from a lowspeed to an intermediate speed position, excessive current flows in coil 24a, roller 71 will engage lug 53b to prevent further forward movement of the controller. A second stop 53c prevents excessive current when the control rod 53 is moved from the intermediatespeed to a high-speed position. Reverse movement of the control rod is not impeded by the stops 53b, 53c. Shoulder 53a insures dynamic braking operation since it prevents switch 25 from opening when the pedal is released until the braking current is reduced to an ineffective value. When there is an over-current in the power circuit, rod 67 engages toggle 76 to trip latch 83 and permit spring 75 to open the switch 25. The toggle 76 is re-set by means of lever 80. The motor 23 may be by-passed when the traction motor 20 reaches a predetermined speed. A generator driven by the motor 23 may be connected in a charging circuit for battery 22. An engine-driven generator may be added to the vehicle to charge the battery when its stored energy is reduced during long-distance travel.
Patent GB-1492018-A (GB)
Title: Method for preparing non-stoichiometric diorganotin carboxylates
IPC: C07F7/22
Filed: 1976-06-11
Abstract: 1492018 Preparing non-stoichiometric diorganotin carboxylates M & T CHEMICALS Inc 11 June 1976 [12 June 1975] 24367/76 Heading C2J [Also in Division C3] Non-stoichiometric diorganotin carboxylates are prepared by forming a homogeneous mixture of finely divided solid diorganotin oxide R<SP>1</SP> 2 SnO and a finely divided solid carboxylic anhydride which is maleic anhydride or is of formula (R<SP>2</SP>CO) 2 O or at least 1À1 mole of diorganotin oxide being present per mole of anhydride and both the oxide and the anhydride having a particle size not exceeding 0À16 cm, and allowing the mixture to react for a sufficient time at a temperature between ambient and 100 C., wherein R<SP>1</SP> is C 1-20  alkyl or is cycloalkyl, aryl, alkaryl or aralkyl, R<SP>2</SP> is C 9-20  alkyl or alkenyl or is cycloalkyl, aryl, hydroxy-substituted aryl, alkaryl, aralkyl or aralkenyl (the alkyl group of the alkaryl or aralkyl radicals for both R<SP>1</SP> and R<SP>2</SP> being C 1-12 ) and R<SP>3</SP> is C 2-12  alkylene or is 1,2- cycloalkenyl or o-phenylene, the C atoms of the -CO-O-CO- radical being bonded to adjacent C atoms of the R<SP>3</SP> radical. In examples, dibutyltin oxide is reacted with maleic anhydride, benzoic anhydride, stearic anhydride and phthalic anhydride. The products are useful as PVC stabilizers.
Patent GB-229603-A (GB)
Title: Improvements in or relating to key-operated instruments for producing colour-music
IPC: A63J17/00
Filed: 1924-10-14
Abstract: 229,603. Schmeer, W. Oct. 14, 1924. Theatrical appliances.-Discs 8<a>, coloured to correspond with the colours of the spectrum, are brought into position, singly or in groups, before a window or projection opening 10 by the playing of keys 1. A guida 11 engages flexible supports 7 and directs the discs into positions and a projection 16<1> on the rod 6 supporting each disc closes the circuit of a solenoid 15<11> causing a shutter 14 to be raised to allow the colour. to be projected. An arc lamp 12 may be used, together with a condenser 13. Groups of colour discs corresponding to chords appear before the opening 10 when several keys are struck. The apparatus may be used in conjunction with a musical instrument such as a piano.
Patent GB-207290-A (GB)
Title: Machine for forming seat padding
IPC: B68G7/00
Filed: 1922-09-08
Abstract: 207,290. Mitchell, A. S. Sept. 8, 1922. Packing-materials.- A machine for forming a padding for upholstery, packing, &c., comprises means for feeding a strip of fibrous material and a strip of reinforcing material, folding the fibrous material about the reinforcing material and permanently uniting the two. The strip of fibrous material, Fig. 7, is conveyed by the belt 9 to the feed rollers 3, 4, and passing between cones 16-16 and 22-22, has its side edges folded over as shown in Fig. 8. A reinforcing strip, 77, of paper, has its edges bent over by passing through the wire frames 81, 82, and after being coated with adhesive in a tank 70 is fed by the rollers 23, 24 upon the fibrous strip, Fig. 9. The two strips then pass between cones 29-29, through a tumular former 31 and between cones 35-35 and delivery rollers 36, 37, during which operation the edges of the fibrous strip are folded as shown in Fig. 10, and are stuck down upon the reinforcing strip 77. The finished strip may then pass to a cutting device.
Patent GB-1300206-A (GB)
Title: Magnetic tape hubs
IPC: G11B15/67
Filed: 1971-04-19
Abstract: 1300206 Hub for winding magnetic tapes AMPEX CORP 19 April 1971 [1 April 1970] 24594/71 Heading B8M A hub 12 for winding a magnetic tape comprises a generally hollow cylindrical tape winding portion 13 having a partition 18 substantially centrally located in the interior thereof, the tape winding portion 13 including the partition 18 being formed with an insertion slot 14, 22 extending axially across the portion 13, radially through the portion 13 and substantially into the partition 18; the partition 18 is relieved to form a recess 26 opening into the slot 22 and is fitted with a jaw element 24 slidable in the recess diametrically toward and away from the slot 22 to form together with the slot 22 a clamp for a tape end, the jaw element 24 being spring- biased towards the slot 22; a cam is mounted in the interior of the portion 13 and is manually operable from one end of the portion 13 to slide the jaw element 24 away from the slot 22 to release the tape end. The jaw element 24 is provided with a conical bore 31 which aligns with an axial bore in the partition 18 when the jaw is in the retracted position. The cam comprises a push button 32 having a rod 33 with a conical section 34 which engages the conical bore 31 of the jaw 24. The rod 33 has an extension 36 which extends through the axial bore in the partition 18 and is secured by a nut 37. When the button 32 is pushed axially into the portion 13 the jaw 24 slides to open the slot 22, a tape end is inserted and the button released whereby the spring 27 causes the jaw 24 to slide to clamp the tape end. The clamping surface of the jaw 24 is preferably profiled to provide a relatively small clamping surface whereby any misalignment of the tape is automatically corrected when the tape is tensioned during winding. The hub 12 is preferably positioned in a cassette comprising side walls 44, 52 by means of elements 54, 64 and 57. One end of the hub is provided with a flange 41 having a stepped and shouldered periphery loosely fitting in a stepped and shouldered opening in the wall 44. The element 54 carries a deformable driving element 66 mating with alternately raised and recessed portions on the flange 41. The other end of the hub is provided with a flange 46 spaced from the end of the hub whereby the element 57 may surround the end of the hub to bear against elements 47 and 49 to compress a spring 48. When the elements 54 and 57 are removed, the spring 48 urges the element 49 into frictional engagement with an element 51 mounted in the wall 52 of the cassette whereby the hub is prevented from rotating, and spillage of tape cannot occur. The hub and partition may be moulded in one piece, but preferably the partition is permanently joined to the hub by a press-fitted pin.
Patent GB-1171285-A (GB)
Title: A Machine and method for Cutting Off Slugs from the end of a Workpiece
Inventor: SHAFER DONALD S
IPC: B23D59/02
Filed: 1966-11-02
Abstract: 1,171,285. Sawing. WATKINS MFG. CO. 2 Nov., 1966, No. 24598/66. Heading B5L. A process for producing slugs or cut-off pieces from stock comprises rotating the stock on its axis, providing at least one rotating cut-off tool adjacent the stock having its axis parallel with the axis of rotation of the stock, the rotation of the stock and tool having a very high differential speed, and effecting a movement of the tool axis towards the stock. In apparatus for carrying out the method, the bar stock 20 is gripped by a chuck 19 carried by a hollow spindle 16 which is mounted in a headstock 11 and driven by a belt drive 29 from a motor 32. The headstock is mounted on a base 10 which carries a longitudinally disposed block 22 along which a slide 23 is adjustably clamped, the slide carrying, at its end adjacent the headstock, a stop 27 for locating the end of the bar stock. A second block 33 is disposed transversely of block 22 and slidably supports a pair of crossslides (36, 37, Fig. 5) each of which slidably supports a tool slide (40, 41) carrying a bearing block (46, 47) for a tool spindle (48, 49), the tool slides being clampable in adjusted positions. Each tool spindle is connected by telescopic rods 60, 61 incorporating universal joints 56, 57, 68, 69 to respective motors 74, 75 mounted on the machine bed 10. The tool spindle 49 carries a circular saw 78, and the tool spindle 48 carries a pair of circular saws 76, 77, saw 77 being slightly larger than saw 76 so that it completes its cut first, the saws being so spaced on the spindles that they complete their cuts in sequence. Each cross-slide is joined by a depending leg (94, 95) to an associated piston-andcylinder device under the control of separate valves having solenoids which are actuated when its cross-slide has moved to the limit to complete its cutting operation to retract the saw or saws from the workpiece, the valves also being connected to a manual or automatic valve for starting the cutting operation. Coolant is supplied to the saws which may have teeth or operate by friction. The work may be formed, drilled or reamed before the cutting operation and may be of round, square or hexagonal solid or tubular cross-section. The saw blades may be provided with teeth or cut by friction and have a thickness between 0À006 and 0À032 inch and rotate at 10,000 r.p.m. Ferrous material may be cut at speeds of 900 to 1200 surface feet per minute and non-ferrous material at speeds between 7165 and 21,000 surface feet per minute, the feed being 0À010 to 0À0226 inch per revolution of the workpiece. For small diameter workpieces, the latter may rotate at 450,000 r.p.m. The saw and workpieces may rotate in the same or opposite directions.
Patent GB-730958-A (GB)
Title: Improvements in or relating to the stripping of plastic coatings from insulated copper wires
IPC: C09D9/00
Filed: 1951-10-22
Abstract: Plastic insulating coatings are stripped from copper wires by passing the wires through a mixture of sulphuric and nitric acids containing 1.5-70.5 per cent by volume of the latter, or through a more dilute mixture obtained by adding water in a proportion by volume not exceeding the volume of the acid mixture.  The acid is preferably used at a temperature of 60-90 DEG  C.  Stoved coatings of phenol- or cresol-formaldehyde-modified polyvinyl formal are referred to.  A blanket layer of paraffin-wax or silicone fluids may be used on the acid bath.
Patent GB-1101231-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: A41F9/00
Filed: 1963-06-20
Abstract: 1,101,231. Waistbands and belts. G. O. JONES. 20 July, 1964 [20 June, 1963], No. 24636/63. Heading A3V. A waistband of a garment, e.g. trousers, skirts, or a waistbelt is cut so that its edges follow the complex curved surface of the wearer's waist region, the two edges of the band/belt at any point along the length in use being at the same tension. One typical form is shown in Fig. 1A, a fastening loop 41A being located in use at the point where one front crease pleat would be in trousers and the point 40A being at the other crease pleat location. The front portion 39A is threaded through the loop 41A, doubled back on itself and fastened by means of hook 42A and slot 43A. In a waistband the portion 39A would be free of the garment. In an alternative form, Fig. 9A, a main belt or band 25 terminates in a fastening loop 28 or 28A at each front crease pleat location to receive a separate belt portion (g<SP>1</SP>) (Fig. 4B, not shown) fastened by a buckle. In these two forms of waistband there is also a front attached waistband section 26 which extends into the rear folds of the front crease pleats. This waistband section 26 may be stiffened to a point an inch or so from the pleats and the remainder lined with thin rubber material which will bend but not retain a crease so that on adjustment of the belt portion 39A or (g<SP>1</SP>) the waistband section 26 and the trouser part adjacent to it can move into or out of the front crease pleats. Alternatively the rear folds 27, 27A of the crease pleats are connected to the side seams at 30, 30A by mildly elasticised webbing, 29, 29A or by detachable elasticised strips (36), Fig. 10A not shown, of adjustable length and having two-pronged end members for engagement with the rear folds. An articulated belt (Figs. 6A-F and 7, not shown) for use in ascertaining the curved form of a particular waist region is the subject of Specification 1,101,232.
Patent GB-742758-A (GB)
Title: A new and improved mechanism for unfolding a longitudinally-folded length of fabric
IPC: D06C5/00
Filed: 1953-09-07
Abstract: 742,758. Unfolding fabrics. CORAH (ST. MARGARET), Ltd., N., [formerly CORAH & SONS, Ltd., N.], and TOACH, T. R. Aug. 23, 1954 [Sept. 7, 1953], No. 24686/53. Class 42 (2). Apparatus for opening out a longitudinallyfolded length of fabric 12, particularly cut tubular knitted fabric, comprises a guideway 2 having sides downsloping from a centre line 3 and diverging laterally from the forward towards the rear end part of the guideway, and having, at its forward end, a nose 6 with a forwardly and downwardly curved edge aligned with centre line 3, and draw rollers 14, 15 for the fabric adjacent the rear end of the guideway. As shown, longitudinally-folded fabric from a folded pile in a container 11 is drawn, with its centre fold line astraddle nose 6, up and over guideway 2 whereby it is opened out flat, over a jockey roller 13 and between rollers 14, 15, whence it is cuttled into a pile 25. Nose 6 comprises a plate with a rounded front corner 9 and a tapered upper edge 10 standing proud of the guideway. The inclination of the guideway can be adjusted by cams 27 rotatable by means of a handle 31.
Patent GB-1341879-A (GB)
Title: Coating method
IPC: C23C14/56
Filed: 1971-04-19
Abstract: 1341879 Coating with metals by evaporation ACIERIES REUNIES DE BURBACH-EICHDUDELANGE SA 19 April 1971 [4 Feb 1970] 24867/71 Heading C7F A method of coating substrates with metal comprises moving a band-shaped article past a metal evaporation or atomisation source in a vacum and simultaneously moving a wire or group of wires at least one on each side of the band past the source. A heated curved screen acting as a vapour reflector may be provided for each wire or group of wires, on the side of the wires opposing the source. The wires may be rotated during deposition.
Patent GB-231927-A (GB)
Title: Improvements in and connected with railway, tramway, and road vehicles
IPC: B61F5/10
Filed: 1923-10-08
Abstract: 231,927. Holden, C. E. Oct. 8, 1923. Scuttle-dashes.-In a pneumatic suspension for vehicles of the type described in Specification 195,919, [Class 108 (ii), Road vehicles, Undercarriage details &c. for], in which a pneumatic tube is mounted between a pair of longitudinal members situated between the body and underframing of the vehicle, the body is adapted for movement independently of the bonnet by means of a cut 160 made around the dash and covered by a weather screen 163.
Patent GB-501794-A (GB)
Title: Improvements in and relating to methods of illumination and electric discharge lamps therefor
IPC: H01J61/30
Filed: 1938-08-25
Abstract: 501,794. Discharge lamps; lighting systems; walls &c. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 25, 1938, No. 25028. Convention date, Aug. 25, 1937. [Class 39 (i)] [Also in Groups X, XI, and XXXV] A wall or ceiling is formed of sealed hollow blocks of translucent material such as glass and containing a gas and/or vapour which is ionized to give light. The filling may be neon or argon at 2 to 15 mm. and some mercury may be added if ultra violet radiation is desired. The wall is formed with a binding material such as a resinous or cellulose composition nonconducting to high frequency current and non-hygroscopic. Conducting plates 16, Fig. 4, may be embedded in the binding material and connected to a supply, the blocks without internal electrodes being in parallel or in series parallel; or the blocks may have barium coated electrodes with the blocks connected in series. The gases may be energized by a radio frequency source. Fluorescent material may be used in the block and the fillings in the blocks may differ to give various colour effects. Each block is formed of two parts 13, 14 sealed together, one part having a roughened interior 15 to diffuse sunlight if the wall is an external one. The blocks may be mounted in frames and be readily replaceable therein.
Patent GB-1299912-A (GB)
Title: Improvements in or relating to textile ribbons for use as stringer tapes for sliding clasp fasteners
IPC: D04B21/20
Filed: 1970-05-26
Abstract: 1299912 Knitting LIGHTNING FASTENERS Ltd 26 May 1970 [4 April 1970] 25056/70 Heading D1K Two or more sliding clasp fastener stringer tapes are knitted side by side consisting of warp threads yarning chains and transverse inlaid threads adjacent tapes being connected by one or more inlaid threads 9 which may be parted to separate the selvedged tapes. As shown, pairs of threads 4 are knitted into chains and wefts 5, 6 are laid in. Adjacent tapes are connected by the threads 9. Threads 4, 5, 6 may be of the same denier but double threads or threads of a higher denier may be used at the edges to give almost uniform thickness over the entire width. The ribbon is made up of threads laid in on the pattern 4-4/0-0 or 2-2/0-0 and the threads 9 also may be either. The knitted threads are 2-0/0-2 and 0-1/1-0.
Patent GB-1128341-A (GB)
Title: Improvements in or relating to the production of crystalline substances in finely divided form
Inventor: WALLACE RICHARD AUBREY
IPC: B01D9/00
Filed: 1949-09-29
Abstract: 1,128,341. Flash evaporation, centrifugal strainers. MINISTER OF TECHNOLOGY. 12 Oct., 1950 [29 Sept., 1949], No. 25067/49. Headings B1B and B1D. A hot concentrated solution of a crystalline substance e.g. nitroguanidine, is passed under pressure above atmospheric pressure to a heated nozzle or nozzles spraying into a basket-type centrifugal separator at atmospheric pressure to give a finely divided solid. A movable scraper blade or scoop may be provided on the separator to scrape the solid from the bucket. The process may be hatchwise or continuous. A solution used comprises nitroguanidine, water, formalin and ammonia.
Patent GB-243136-A (GB)
Title: Improvements in or relating to electrical switches, circuit-breakers or like appliances
IPC: H01H19/10
Filed: 1924-10-22
Abstract: 243,136. Cormond, A. Oct. 22, 1924. No Patent granted (Sealing fee not paid). Switches, quickaction, operated by a rotary spindle have a ball-race 23 situated between the movable contact - carrying member 7 and a washer 22. One of these members, e.g. the washer 22 has a plane surface. The other member 7 has a number of spherical depressions arranged at equal intervals on its lower surface to accommodate the balls 23. The invention is shown applied to a switch having an operating spindle 4 connected by a spring 14 to a member fixed to the member 7 and to the contact member 3, but when the spindle 4 is rotated, the members 3 and 7 are prevented from following it by the member 7 pressing against a ring 19 which has a lug 20 engaging one of the teeth of a fixed ratchet-wheel 21. Release of the ring 19 and consequently of the members 3 and 7 is effected by a cam 18 on the spindle 4 moving the ring 19 in a radial direction till the lug 20 slips off its tooth. The members 3, 7, 19 then rotate, to make or break circuit, till the lug 20 engages the next tooth of the wheel 21.
Patent GB-878583-A (GB)
Title: Improvements relating to electric transformer installations
Inventor: CUTLER CYRIL
IPC: H01F38/38
Filed: 1959-07-22
Abstract: 878,583. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 15, 1960 [July 22, 1959], No. 25190/59. Class 38 (2). A high-voltage current transformer comprises an oil-filled porcelain insulator 6 through which pass leads from the secondary windings 4, 5, mounted above an oilfilled tank 1 through which passes the primary winding 2 to which it is electrically connected at 3. Such transformers may be suspended singly or in groups from a gantry 9 (Fig. 1, not shown), Fig. 2, or mounted on three insulating legs (Fig. 3, not shown).
Patent GB-264559-A (GB)
Title: Improvements relating to the production of pattern effects on fabrics
IPC: D06Q1/00
Filed: 1925-10-09
Abstract: 264,559. Tootal, Broadhurst, Lee Co., Ltd., and Foulds, R. P. Oct. 9, 1925. Inkless printing by chemical reaction.-Pattern effects are produced on cotton or artificial silk by treating selected areas with a concentrated solution of antimony or bismuth trichloride and thereafter treating such areas with water to precipitate antimony or bismuth oxide in the fabric. The chloride can be dissolved in glycerine, lactic acid, or any other suitable medium from which the oxide is not thrown out until the fabric is. treated with water. A thickening agent such as china clay and gum or feculose may be used. To allow a more concentrated solution of chloride to be used a small proportion of hydrochloric acid may be present. Examples are given in which cotton and acetyl cellulose are printed with a solution of antimonv trichloride and feculose in lactic acid, to which a trace of blue dye may be added if the white produced by the chloride is not sufficiently good. The fabrics may be dyed or printed or subjected to the usual finishing processes before or after treatment.